It would be safe to turn off the balancer, yes go ahead.
To know if adding more hardware will help, we need to see how much
longer this current splitting should take. This will help:
ceph status
ceph osd pool ls detail
-- dan
On Tue, Mar 30, 2021 at 3:00 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>
> I would think due to splitting, because the balancer doesn't refuses it's work, because to many misplaced objects.
> I also think to turn it off for now, so it doesn't begin it's work at 5% missplaced objects.
>
> Would adding more hardware help? We wanted to insert another OSD node with 7x8TB disks anyway, but postponed it due to the rebalancing.
>
> Am Di., 30. März 2021 um 14:23 Uhr schrieb Dan van der Ster <dan@xxxxxxxxxxxxxx>:
>>
>> Are those PGs backfilling due to splitting or due to balancing?
>> If it's the former, I don't think there's a way to pause them with
>> upmap or any other trick.
>>
>> -- dan
>>
>> On Tue, Mar 30, 2021 at 2:07 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>> >
>> > One week later the ceph is still balancing.
>> > What worries me like hell is the %USE on a lot of those OSDs. Does ceph
>> > resolv this on it's own? We are currently down to 5TB space in the cluster.
>> > Rebalancing single OSDs doesn't work well and it increases the "missplaced
>> > objects".
>> >
>> > I thought about letting upmap do some rebalancing. Anyone know if this is a
>> > good idea? Or if I should bite my nails an wait as I am the headache of my
>> > life.
>> > [root@s3db1 ~]# ceph osd getmap -o om; osdmaptool om --upmap out.txt
>> > --upmap-pool eu-central-1.rgw.buckets.data --upmap-max 10; cat out.txt
>> > got osdmap epoch 321975
>> > osdmaptool: osdmap file 'om'
>> > writing upmap command output to: out.txt
>> > checking for upmap cleanups
>> > upmap, max-count 10, max deviation 5
>> > limiting to pools eu-central-1.rgw.buckets.data ([11])
>> > pools eu-central-1.rgw.buckets.data
>> > prepared 10/10 changes
>> > ceph osd rm-pg-upmap-items 11.209
>> > ceph osd rm-pg-upmap-items 11.253
>> > ceph osd pg-upmap-items 11.7f 79 88
>> > ceph osd pg-upmap-items 11.fc 53 31 105 78
>> > ceph osd pg-upmap-items 11.1d8 84 50
>> > ceph osd pg-upmap-items 11.47f 94 86
>> > ceph osd pg-upmap-items 11.49c 44 71
>> > ceph osd pg-upmap-items 11.553 74 50
>> > ceph osd pg-upmap-items 11.6c3 66 63
>> > ceph osd pg-upmap-items 11.7ad 43 50
>> >
>> > ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META
>> > AVAIL %USE VAR PGS STATUS TYPE NAME
>> > -1 795.42548 - 795 TiB 626 TiB 587 TiB 82 GiB 1.4 TiB 170
>> > TiB 78.64 1.00 - root default
>> > 56 hdd 7.32619 1.00000 7.3 TiB 6.4 TiB 6.4 TiB 684 MiB 16 GiB 910
>> > GiB 87.87 1.12 129 up osd.56
>> > 67 hdd 7.27739 1.00000 7.3 TiB 6.4 TiB 6.4 TiB 582 MiB 16 GiB 865
>> > GiB 88.40 1.12 115 up osd.67
>> > 79 hdd 3.63689 1.00000 3.6 TiB 3.2 TiB 432 GiB 1.9 GiB 0 B 432
>> > GiB 88.40 1.12 63 up osd.79
>> > 53 hdd 7.32619 1.00000 7.3 TiB 6.5 TiB 6.4 TiB 971 MiB 22 GiB 864
>> > GiB 88.48 1.13 114 up osd.53
>> > 51 hdd 7.27739 1.00000 7.3 TiB 6.5 TiB 6.4 TiB 734 MiB 15 GiB 837
>> > GiB 88.77 1.13 120 up osd.51
>> > 73 hdd 14.55269 1.00000 15 TiB 13 TiB 13 TiB 1.8 GiB 39 GiB 1.6
>> > TiB 88.97 1.13 246 up osd.73
>> > 55 hdd 7.32619 1.00000 7.3 TiB 6.5 TiB 6.5 TiB 259 MiB 15 GiB 825
>> > GiB 89.01 1.13 118 up osd.55
>> > 70 hdd 7.27739 1.00000 7.3 TiB 6.5 TiB 6.5 TiB 291 MiB 16 GiB 787
>> > GiB 89.44 1.14 119 up osd.70
>> > 42 hdd 3.73630 1.00000 3.7 TiB 3.4 TiB 3.3 TiB 685 MiB 8.2 GiB 374
>> > GiB 90.23 1.15 60 up osd.42
>> > 94 hdd 3.63869 1.00000 3.6 TiB 3.3 TiB 3.3 TiB 132 MiB 7.7 GiB 345
>> > GiB 90.75 1.15 64 up osd.94
>> > 25 hdd 3.73630 1.00000 3.7 TiB 3.4 TiB 3.3 TiB 3.2 MiB 8.1 GiB 352
>> > GiB 90.79 1.15 53 up osd.25
>> > 31 hdd 7.32619 1.00000 7.3 TiB 6.7 TiB 6.6 TiB 223 MiB 15 GiB 690
>> > GiB 90.80 1.15 117 up osd.31
>> > 84 hdd 7.52150 1.00000 7.5 TiB 6.8 TiB 6.6 TiB 159 MiB 16 GiB 699
>> > GiB 90.93 1.16 121 up osd.84
>> > 82 hdd 3.63689 1.00000 3.6 TiB 3.3 TiB 332 GiB 1.0 GiB 0 B 332
>> > GiB 91.08 1.16 59 up osd.82
>> > 89 hdd 7.52150 1.00000 7.5 TiB 6.9 TiB 6.6 TiB 400 MiB 15 GiB 670
>> > GiB 91.29 1.16 126 up osd.89
>> > 33 hdd 3.73630 1.00000 3.7 TiB 3.4 TiB 3.3 TiB 382 MiB 8.6 GiB 327
>> > GiB 91.46 1.16 66 up osd.33
>> > 90 hdd 7.52150 1.00000 7.5 TiB 6.9 TiB 6.6 TiB 338 MiB 15 GiB 658
>> > GiB 91.46 1.16 112 up osd.90
>> > 105 hdd 3.63869 0.89999 3.6 TiB 3.3 TiB 3.3 TiB 206 MiB 8.1 GiB 301
>> > GiB 91.91 1.17 56 up osd.105
>> > 66 hdd 7.27739 0.95000 7.3 TiB 6.7 TiB 6.7 TiB 322 MiB 16 GiB 548
>> > GiB 92.64 1.18 121 up osd.66
>> > 46 hdd 7.27739 1.00000 7.3 TiB 6.8 TiB 6.7 TiB 316 MiB 16 GiB 536
>> > GiB 92.81 1.18 119 up osd.46
>> >
>> > Am Di., 23. März 2021 um 19:59 Uhr schrieb Boris Behrens <bb@xxxxxxxxx>:
>> >
>> > > Good point. Thanks for the hint. I changed it for all OSDs from 5 to 1
>> > > *crossing finger*
>> > >
>> > > Am Di., 23. März 2021 um 19:45 Uhr schrieb Dan van der Ster <
>> > > dan@xxxxxxxxxxxxxx>:
>> > >
>> > >> I see. When splitting PGs, the OSDs will increase is used space
>> > >> temporarily to make room for the new PGs.
>> > >> When going from 1024->2048 PGs, that means that half of the objects from
>> > >> each PG will be copied to a new PG, and then the previous PGs will have
>> > >> those objects deleted.
>> > >>
>> > >> Make sure osd_max_backfills is set to 1, so that not too many PGs are
>> > >> moving concurrently.
>> > >>
>> > >>
>> > >>
>> > >> On Tue, Mar 23, 2021, 7:39 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>> > >>
>> > >>> Thank you.
>> > >>> Currently I do not have any full OSDs (all <90%) but I keep this in mind.
>> > >>> What worries me is the ever increasing %USE metric (it went up from
>> > >>> around 72% to 75% in three hours). It looks like there is comming a lot of
>> > >>> data (there comes barely new data at the moment), but I think this might
>> > >>> have to do with my "let's try to increase the PGs to 2048". I hope that
>> > >>> ceph begins to split the old PGs into new ones and removes the old PGs.
>> > >>>
>> > >>> ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META
>> > >>> AVAIL %USE VAR PGS STATUS TYPE NAME
>> > >>> -1 795.42548 - 795 TiB 597 TiB 556 TiB 88 GiB 1.4 TiB
>> > >>> 198 TiB 75.12 1.00 - root default
>> > >>>
>> > >>> Am Di., 23. März 2021 um 19:21 Uhr schrieb Dan van der Ster <
>> > >>> dan@xxxxxxxxxxxxxx>:
>> > >>>
>> > >>>> While you're watching things, if an OSD is getting too close for
>> > >>>> comfort to the full ratio, you can temporarily increase it, e.g.
>> > >>>> ceph osd set-full-ratio 0.96
>> > >>>>
>> > >>>> But don't set that too high -- you can really break an OSD if it gets
>> > >>>> 100% full (and then can't delete objects or whatever...)
>> > >>>>
>> > >>>> -- dan
>> > >>>>
>> > >>>> On Tue, Mar 23, 2021 at 7:17 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>> > >>>> >
>> > >>>> > Ok, then I will try to reweight the most filled OSDs to .95 and see
>> > >>>> if this helps.
>> > >>>> >
>> > >>>> > Am Di., 23. März 2021 um 19:13 Uhr schrieb Dan van der Ster <
>> > >>>> dan@xxxxxxxxxxxxxx>:
>> > >>>> >>
>> > >>>> >> Data goes to *all* PGs uniformly.
>> > >>>> >> Max_avail is limited by the available space on the most full OSD --
>> > >>>> >> you should pay close attention to those and make sure they are moving
>> > >>>> >> in the right direction (decreasing!)
>> > >>>> >>
>> > >>>> >> Another point -- IMHO you should aim to get all PGs active+clean
>> > >>>> >> before you add yet another batch of new disks. While there are PGs
>> > >>>> >> backfilling, your osdmaps are accumulating on the mons and osds --
>> > >>>> >> this itself will start to use a lot of space, and active+clean is the
>> > >>>> >> only way to trim the old maps.
>> > >>>> >>
>> > >>>> >> -- dan
>> > >>>> >>
>> > >>>> >> On Tue, Mar 23, 2021 at 7:05 PM Boris Behrens <bb@xxxxxxxxx> wrote:
>> > >>>> >> >
>> > >>>> >> > So,
>> > >>>> >> > doing nothing and wait for the ceph to recover?
>> > >>>> >> >
>> > >>>> >> > In theory there should be enough disk space (more disks arriving
>> > >>>> tomorrow), but I fear that there might be an issue, when the backups get
>> > >>>> exported over night to this s3. Currently the max_avail lingers around 13TB
>> > >>>> and I hope, that the data will go to other PGs than the ones that are
>> > >>>> currently on filled OSDs.
>> > >>>> >> >
>> > >>>> >> >
>> > >>>> >> >
>> > >>>> >> > Am Di., 23. März 2021 um 18:58 Uhr schrieb Dan van der Ster <
>> > >>>> dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >>
>> > >>>> >> >> Hi,
>> > >>>> >> >>
>> > >>>> >> >> backfill_toofull is not a bad thing when the cluster is really
>> > >>>> full
>> > >>>> >> >> like yours. You should expect some of the most full OSDs to
>> > >>>> eventually
>> > >>>> >> >> start decreasing in usage, as the PGs are moved to the new OSDs.
>> > >>>> Those
>> > >>>> >> >> backfill_toofull states should then resolve themselves as the OSD
>> > >>>> >> >> usage flattens out.
>> > >>>> >> >> Keep an eye on the usage of the backfill_full and nearfull OSDs
>> > >>>> though
>> > >>>> >> >> -- if they do eventually go above the full_ratio (95% by default),
>> > >>>> >> >> then writes to those OSDs would stop.
>> > >>>> >> >>
>> > >>>> >> >> But if on the other hand you're suffering from lots of slow ops or
>> > >>>> >> >> anything else visible to your users, then you could try to take
>> > >>>> some
>> > >>>> >> >> actions to slow down the rebalancing. Just let us know if that's
>> > >>>> the
>> > >>>> >> >> case and we can see about changing osd_max_backfills, some
>> > >>>> weights or
>> > >>>> >> >> maybe using the upmap-remapped tool.
>> > >>>> >> >>
>> > >>>> >> >> -- Dan
>> > >>>> >> >>
>> > >>>> >> >> On Tue, Mar 23, 2021 at 6:07 PM Boris Behrens <bb@xxxxxxxxx>
>> > >>>> wrote:
>> > >>>> >> >> >
>> > >>>> >> >> > Ok, I should have listened to you :)
>> > >>>> >> >> >
>> > >>>> >> >> > In the last week we added more storage but the issue got worse
>> > >>>> instead.
>> > >>>> >> >> > Today I realized that the PGs were up to 90GB (bytes column in
>> > >>>> ceph pg ls said 95705749636), and the balance kept mentioning the 2048 PGs
>> > >>>> for this pool. We were at 72% utilization (ceph osd df tree, first line)
>> > >>>> for our cluster and I increased the PGs to 2048.
>> > >>>> >> >> >
>> > >>>> >> >> > Now I am in a world of trouble.
>> > >>>> >> >> > The space in the cluster went down, I am at 45% misplaced
>> > >>>> objects, and we already added 20x4TB disks just to not go down completly.
>> > >>>> >> >> >
>> > >>>> >> >> > The utilization is still going up and the overall free space in
>> > >>>> the cluster seems to go down. This is what my ceph status looks like and
>> > >>>> now I really need help to get that thing back to normal:
>> > >>>> >> >> > [root@s3db1 ~]# ceph status
>> > >>>> >> >> > cluster:
>> > >>>> >> >> > id: dca79fff-ffd0-58f4-1cff-82a2feea05f4
>> > >>>> >> >> > health: HEALTH_WARN
>> > >>>> >> >> > 4 backfillfull osd(s)
>> > >>>> >> >> > 17 nearfull osd(s)
>> > >>>> >> >> > 37 pool(s) backfillfull
>> > >>>> >> >> > 13 large omap objects
>> > >>>> >> >> > Low space hindering backfill (add storage if this
>> > >>>> doesn't resolve itself): 570 pgs backfill_toofull
>> > >>>> >> >> >
>> > >>>> >> >> > services:
>> > >>>> >> >> > mon: 3 daemons, quorum
>> > >>>> ceph-s3-mon1,ceph-s3-mon2,ceph-s3-mon3 (age 44m)
>> > >>>> >> >> > mgr: ceph-mgr2(active, since 15m), standbys: ceph-mgr3,
>> > >>>> ceph-mgr1
>> > >>>> >> >> > mds: 3 up:standby
>> > >>>> >> >> > osd: 110 osds: 110 up (since 28m), 110 in (since 28m); 1535
>> > >>>> remapped pgs
>> > >>>> >> >> > rgw: 3 daemons active (eu-central-1, eu-msg-1, eu-secure-1)
>> > >>>> >> >> >
>> > >>>> >> >> > task status:
>> > >>>> >> >> >
>> > >>>> >> >> > data:
>> > >>>> >> >> > pools: 37 pools, 4032 pgs
>> > >>>> >> >> > objects: 116.23M objects, 182 TiB
>> > >>>> >> >> > usage: 589 TiB used, 206 TiB / 795 TiB avail
>> > >>>> >> >> > pgs: 160918554/348689415 objects misplaced (46.150%)
>> > >>>> >> >> > 2497 active+clean
>> > >>>> >> >> > 779 active+remapped+backfill_wait
>> > >>>> >> >> > 538 active+remapped+backfill_wait+backfill_toofull
>> > >>>> >> >> > 186 active+remapped+backfilling
>> > >>>> >> >> > 32 active+remapped+backfill_toofull
>> > >>>> >> >> >
>> > >>>> >> >> > io:
>> > >>>> >> >> > client: 27 MiB/s rd, 69 MiB/s wr, 497 op/s rd, 153 op/s wr
>> > >>>> >> >> > recovery: 1.5 GiB/s, 922 objects/s
>> > >>>> >> >> >
>> > >>>> >> >> > Am Di., 16. März 2021 um 09:34 Uhr schrieb Boris Behrens <
>> > >>>> bb@xxxxxxxxx>:
>> > >>>> >> >> >>
>> > >>>> >> >> >> Hi Dan,
>> > >>>> >> >> >>
>> > >>>> >> >> >> my EC profile look very "default" to me.
>> > >>>> >> >> >> [root@s3db1 ~]# ceph osd erasure-code-profile ls
>> > >>>> >> >> >> default
>> > >>>> >> >> >> [root@s3db1 ~]# ceph osd erasure-code-profile get default
>> > >>>> >> >> >> k=2
>> > >>>> >> >> >> m=1
>> > >>>> >> >> >> plugin=jerasure
>> > >>>> >> >> >> technique=reed_sol_van
>> > >>>> >> >> >>
>> > >>>> >> >> >> I don't understand the ouput, but the balancing get worse over
>> > >>>> night:
>> > >>>> >> >> >>
>> > >>>> >> >> >> [root@s3db1 ~]# ceph-scripts/tools/ceph-pool-pg-distribution
>> > >>>> 11
>> > >>>> >> >> >> Searching for PGs in pools: ['11']
>> > >>>> >> >> >> Summary: 1024 PGs on 84 osds
>> > >>>> >> >> >>
>> > >>>> >> >> >> Num OSDs with X PGs:
>> > >>>> >> >> >> 15: 8
>> > >>>> >> >> >> 16: 7
>> > >>>> >> >> >> 17: 6
>> > >>>> >> >> >> 18: 10
>> > >>>> >> >> >> 19: 1
>> > >>>> >> >> >> 32: 10
>> > >>>> >> >> >> 33: 4
>> > >>>> >> >> >> 34: 6
>> > >>>> >> >> >> 35: 8
>> > >>>> >> >> >> 65: 5
>> > >>>> >> >> >> 66: 5
>> > >>>> >> >> >> 67: 4
>> > >>>> >> >> >> 68: 10
>> > >>>> >> >> >> [root@s3db1 ~]# ceph-scripts/tools/ceph-pg-histogram
>> > >>>> --normalize --pool=11
>> > >>>> >> >> >> # NumSamples = 84; Min = 4.12; Max = 5.09
>> > >>>> >> >> >> # Mean = 4.553355; Variance = 0.052415; SD = 0.228942; Median
>> > >>>> 4.561608
>> > >>>> >> >> >> # each ∎ represents a count of 1
>> > >>>> >> >> >> 4.1244 - 4.2205 [ 8]: ∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.2205 - 4.3166 [ 6]: ∎∎∎∎∎∎
>> > >>>> >> >> >> 4.3166 - 4.4127 [ 11]: ∎∎∎∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.4127 - 4.5087 [ 10]: ∎∎∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.5087 - 4.6048 [ 11]: ∎∎∎∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.6048 - 4.7009 [ 19]: ∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.7009 - 4.7970 [ 6]: ∎∎∎∎∎∎
>> > >>>> >> >> >> 4.7970 - 4.8931 [ 8]: ∎∎∎∎∎∎∎∎
>> > >>>> >> >> >> 4.8931 - 4.9892 [ 4]: ∎∎∎∎
>> > >>>> >> >> >> 4.9892 - 5.0852 [ 1]: ∎
>> > >>>> >> >> >> [root@s3db1 ~]# ceph osd df tree | sort -nk 17 | tail
>> > >>>> >> >> >> 14 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 724 GiB 19 GiB
>> > >>>> 0 B 724 GiB 80.56 1.07 56 up osd.14
>> > >>>> >> >> >> 19 hdd 3.68750 1.00000 3.7 TiB 3.0 TiB 2.9 TiB 466 MiB
>> > >>>> 7.9 GiB 708 GiB 81.25 1.08 53 up osd.19
>> > >>>> >> >> >> 4 hdd 3.63689 1.00000 3.6 TiB 3.0 TiB 698 GiB 703 MiB
>> > >>>> 0 B 698 GiB 81.27 1.08 48 up osd.4
>> > >>>> >> >> >> 24 hdd 3.63689 1.00000 3.6 TiB 3.0 TiB 695 GiB 640 MiB
>> > >>>> 0 B 695 GiB 81.34 1.08 46 up osd.24
>> > >>>> >> >> >> 75 hdd 3.68750 1.00000 3.7 TiB 3.0 TiB 2.9 TiB 440 MiB
>> > >>>> 8.1 GiB 704 GiB 81.35 1.08 48 up osd.75
>> > >>>> >> >> >> 71 hdd 3.68750 1.00000 3.7 TiB 3.0 TiB 3.0 TiB 7.5 MiB
>> > >>>> 8.0 GiB 663 GiB 82.44 1.09 47 up osd.71
>> > >>>> >> >> >> 76 hdd 3.68750 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 251 MiB
>> > >>>> 9.0 GiB 617 GiB 83.65 1.11 50 up osd.76
>> > >>>> >> >> >> 33 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 399 MiB
>> > >>>> 8.1 GiB 618 GiB 83.85 1.11 55 up osd.33
>> > >>>> >> >> >> 35 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 317 MiB
>> > >>>> 8.8 GiB 617 GiB 83.87 1.11 50 up osd.35
>> > >>>> >> >> >> 34 hdd 3.73630 1.00000 3.7 TiB 3.2 TiB 3.1 TiB 451 MiB
>> > >>>> 8.7 GiB 545 GiB 85.75 1.14 54 up osd.34
>> > >>>> >> >> >>
>> > >>>> >> >> >> Am Mo., 15. März 2021 um 17:23 Uhr schrieb Dan van der Ster <
>> > >>>> dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> Hi,
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> How wide are your EC profiles? If they are really wide, you
>> > >>>> might be
>> > >>>> >> >> >>> reaching the limits of what is physically possible. Also, I'm
>> > >>>> not sure
>> > >>>> >> >> >>> that upmap in 14.2.11 is very smart about *improving*
>> > >>>> existing upmap
>> > >>>> >> >> >>> rules for a given PG, in the case that a PG already has an
>> > >>>> upmap-items
>> > >>>> >> >> >>> entry but it would help the distribution to add more mapping
>> > >>>> pairs to
>> > >>>> >> >> >>> that entry. What this means, is that it might sometimes be
>> > >>>> useful to
>> > >>>> >> >> >>> randomly remove some upmap entries and see if the balancer
>> > >>>> does a
>> > >>>> >> >> >>> better job when it replaces them.
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> But before you do that, I re-remembered that looking at the
>> > >>>> total PG
>> > >>>> >> >> >>> numbers is not useful -- you need to check the PGs per OSD
>> > >>>> for the
>> > >>>> >> >> >>> eu-central-1.rgw.buckets.data pool only.
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> We have a couple tools that can help with this:
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> 1. To see the PGs per OSD for a given pool:
>> > >>>> >> >> >>>
>> > >>>> https://github.com/cernceph/ceph-scripts/blob/master/tools/ceph-pool-pg-distribution
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> E.g.: ./ceph-pool-pg-distribution 11 # to see the
>> > >>>> distribution of
>> > >>>> >> >> >>> your eu-central-1.rgw.buckets.data pool.
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> The output looks like this on my well balanced clusters:
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> # ceph-scripts/tools/ceph-pool-pg-distribution 15
>> > >>>> >> >> >>> Searching for PGs in pools: ['15']
>> > >>>> >> >> >>> Summary: 256 pgs on 56 osds
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> Num OSDs with X PGs:
>> > >>>> >> >> >>> 13: 16
>> > >>>> >> >> >>> 14: 40
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> You should expect a trimodal for your cluster.
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> 2. You can also use another script from that repo to see the
>> > >>>> PGs per
>> > >>>> >> >> >>> OSD normalized to crush weight:
>> > >>>> >> >> >>> ceph-scripts/tools/ceph-pg-histogram --normalize --pool=15
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> This might explain what is going wrong.
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> Cheers, Dan
>> > >>>> >> >> >>>
>> > >>>> >> >> >>>
>> > >>>> >> >> >>> On Mon, Mar 15, 2021 at 3:04 PM Boris Behrens <bb@xxxxxxxxx>
>> > >>>> wrote:
>> > >>>> >> >> >>> >
>> > >>>> >> >> >>> > Absolutly:
>> > >>>> >> >> >>> > [root@s3db1 ~]# ceph osd df tree
>> > >>>> >> >> >>> > ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP
>> > >>>> META AVAIL %USE VAR PGS STATUS TYPE NAME
>> > >>>> >> >> >>> > -1 673.54224 - 674 TiB 496 TiB 468 TiB 97
>> > >>>> GiB 1.2 TiB 177 TiB 73.67 1.00 - root default
>> > >>>> >> >> >>> > -2 58.30331 - 58 TiB 42 TiB 38 TiB 9.2
>> > >>>> GiB 99 GiB 16 TiB 72.88 0.99 - host s3db1
>> > >>>> >> >> >>> > 23 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 714
>> > >>>> MiB 25 GiB 3.7 TiB 74.87 1.02 194 up osd.23
>> > >>>> >> >> >>> > 69 hdd 14.55269 1.00000 15 TiB 11 TiB 11 TiB 1.6
>> > >>>> GiB 40 GiB 3.4 TiB 76.32 1.04 199 up osd.69
>> > >>>> >> >> >>> > 73 hdd 14.55269 1.00000 15 TiB 11 TiB 11 TiB 1.3
>> > >>>> GiB 34 GiB 3.8 TiB 74.15 1.01 203 up osd.73
>> > >>>> >> >> >>> > 79 hdd 3.63689 1.00000 3.6 TiB 2.4 TiB 1.3 TiB 1.8
>> > >>>> GiB 0 B 1.3 TiB 65.44 0.89 47 up osd.79
>> > >>>> >> >> >>> > 80 hdd 3.63689 1.00000 3.6 TiB 2.4 TiB 1.3 TiB 2.2
>> > >>>> GiB 0 B 1.3 TiB 65.34 0.89 48 up osd.80
>> > >>>> >> >> >>> > 81 hdd 3.63689 1.00000 3.6 TiB 2.4 TiB 1.3 TiB 1.1
>> > >>>> GiB 0 B 1.3 TiB 65.38 0.89 47 up osd.81
>> > >>>> >> >> >>> > 82 hdd 3.63689 1.00000 3.6 TiB 2.5 TiB 1.1 TiB 619
>> > >>>> MiB 0 B 1.1 TiB 68.46 0.93 41 up osd.82
>> > >>>> >> >> >>> > -11 50.94173 - 51 TiB 37 TiB 37 TiB 3.5
>> > >>>> GiB 98 GiB 14 TiB 71.90 0.98 - host s3db10
>> > >>>> >> >> >>> > 63 hdd 7.27739 1.00000 7.3 TiB 5.3 TiB 5.3 TiB 647
>> > >>>> MiB 14 GiB 2.0 TiB 72.72 0.99 94 up osd.63
>> > >>>> >> >> >>> > 64 hdd 7.27739 1.00000 7.3 TiB 5.3 TiB 5.2 TiB 668
>> > >>>> MiB 14 GiB 2.0 TiB 72.23 0.98 93 up osd.64
>> > >>>> >> >> >>> > 65 hdd 7.27739 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 227
>> > >>>> MiB 14 GiB 2.1 TiB 71.16 0.97 100 up osd.65
>> > >>>> >> >> >>> > 66 hdd 7.27739 1.00000 7.3 TiB 5.4 TiB 5.4 TiB 313
>> > >>>> MiB 14 GiB 1.9 TiB 74.25 1.01 92 up osd.66
>> > >>>> >> >> >>> > 67 hdd 7.27739 1.00000 7.3 TiB 5.1 TiB 5.1 TiB 584
>> > >>>> MiB 14 GiB 2.1 TiB 70.63 0.96 96 up osd.67
>> > >>>> >> >> >>> > 68 hdd 7.27739 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 720
>> > >>>> MiB 14 GiB 2.1 TiB 71.72 0.97 101 up osd.68
>> > >>>> >> >> >>> > 70 hdd 7.27739 1.00000 7.3 TiB 5.1 TiB 5.1 TiB 425
>> > >>>> MiB 14 GiB 2.1 TiB 70.59 0.96 97 up osd.70
>> > >>>> >> >> >>> > -12 50.99052 - 51 TiB 38 TiB 37 TiB 2.1
>> > >>>> GiB 97 GiB 13 TiB 73.77 1.00 - host s3db11
>> > >>>> >> >> >>> > 46 hdd 7.27739 1.00000 7.3 TiB 5.6 TiB 5.6 TiB 229
>> > >>>> MiB 14 GiB 1.7 TiB 77.05 1.05 97 up osd.46
>> > >>>> >> >> >>> > 47 hdd 7.27739 1.00000 7.3 TiB 5.1 TiB 5.1 TiB 159
>> > >>>> MiB 13 GiB 2.2 TiB 70.00 0.95 89 up osd.47
>> > >>>> >> >> >>> > 48 hdd 7.27739 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 279
>> > >>>> MiB 14 GiB 2.1 TiB 71.82 0.97 98 up osd.48
>> > >>>> >> >> >>> > 49 hdd 7.27739 1.00000 7.3 TiB 5.5 TiB 5.4 TiB 276
>> > >>>> MiB 14 GiB 1.8 TiB 74.90 1.02 95 up osd.49
>> > >>>> >> >> >>> > 50 hdd 7.27739 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 336
>> > >>>> MiB 14 GiB 2.0 TiB 72.13 0.98 93 up osd.50
>> > >>>> >> >> >>> > 51 hdd 7.27739 1.00000 7.3 TiB 5.7 TiB 5.6 TiB 728
>> > >>>> MiB 15 GiB 1.6 TiB 77.76 1.06 98 up osd.51
>> > >>>> >> >> >>> > 72 hdd 7.32619 1.00000 7.3 TiB 5.3 TiB 5.3 TiB 147
>> > >>>> MiB 13 GiB 2.0 TiB 72.75 0.99 95 up osd.72
>> > >>>> >> >> >>> > -37 58.55478 - 59 TiB 44 TiB 44 TiB 4.4
>> > >>>> GiB 122 GiB 15 TiB 75.20 1.02 - host s3db12
>> > >>>> >> >> >>> > 19 hdd 3.68750 1.00000 3.7 TiB 2.9 TiB 2.9 TiB 454
>> > >>>> MiB 8.2 GiB 780 GiB 79.35 1.08 53 up osd.19
>> > >>>> >> >> >>> > 71 hdd 3.68750 1.00000 3.7 TiB 3.0 TiB 2.9 TiB 7.1
>> > >>>> MiB 8.0 GiB 734 GiB 80.56 1.09 47 up osd.71
>> > >>>> >> >> >>> > 75 hdd 3.68750 1.00000 3.7 TiB 2.9 TiB 2.9 TiB 439
>> > >>>> MiB 8.2 GiB 777 GiB 79.43 1.08 48 up osd.75
>> > >>>> >> >> >>> > 76 hdd 3.68750 1.00000 3.7 TiB 3.0 TiB 3.0 TiB 241
>> > >>>> MiB 8.9 GiB 688 GiB 81.77 1.11 50 up osd.76
>> > >>>> >> >> >>> > 77 hdd 14.60159 1.00000 15 TiB 11 TiB 11 TiB 880
>> > >>>> MiB 30 GiB 3.6 TiB 75.44 1.02 201 up osd.77
>> > >>>> >> >> >>> > 78 hdd 14.60159 1.00000 15 TiB 10 TiB 10 TiB 1015
>> > >>>> MiB 28 GiB 4.2 TiB 71.26 0.97 193 up osd.78
>> > >>>> >> >> >>> > 83 hdd 14.60159 1.00000 15 TiB 11 TiB 11 TiB 1.4
>> > >>>> GiB 30 GiB 3.8 TiB 73.76 1.00 203 up osd.83
>> > >>>> >> >> >>> > -3 58.49872 - 58 TiB 42 TiB 36 TiB 8.2
>> > >>>> GiB 89 GiB 17 TiB 71.71 0.97 - host s3db2
>> > >>>> >> >> >>> > 1 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 3.2
>> > >>>> GiB 37 GiB 3.7 TiB 74.58 1.01 196 up osd.1
>> > >>>> >> >> >>> > 3 hdd 3.63689 1.00000 3.6 TiB 2.3 TiB 1.3 TiB 566
>> > >>>> MiB 0 B 1.3 TiB 64.11 0.87 50 up osd.3
>> > >>>> >> >> >>> > 4 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 771 GiB 695
>> > >>>> MiB 0 B 771 GiB 79.30 1.08 48 up osd.4
>> > >>>> >> >> >>> > 5 hdd 3.63689 1.00000 3.6 TiB 2.4 TiB 1.2 TiB 482
>> > >>>> MiB 0 B 1.2 TiB 66.51 0.90 49 up osd.5
>> > >>>> >> >> >>> > 6 hdd 3.63689 1.00000 3.6 TiB 2.3 TiB 1.3 TiB 1.8
>> > >>>> GiB 0 B 1.3 TiB 64.00 0.87 42 up osd.6
>> > >>>> >> >> >>> > 7 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 639
>> > >>>> MiB 26 GiB 4.0 TiB 72.44 0.98 192 up osd.7
>> > >>>> >> >> >>> > 74 hdd 14.65039 1.00000 15 TiB 10 TiB 10 TiB 907
>> > >>>> MiB 26 GiB 4.2 TiB 71.32 0.97 193 up osd.74
>> > >>>> >> >> >>> > -4 58.49872 - 58 TiB 43 TiB 36 TiB 34
>> > >>>> GiB 85 GiB 16 TiB 72.69 0.99 - host s3db3
>> > >>>> >> >> >>> > 2 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 980
>> > >>>> MiB 26 GiB 3.8 TiB 74.36 1.01 203 up osd.2
>> > >>>> >> >> >>> > 9 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 8.4
>> > >>>> GiB 33 GiB 3.9 TiB 73.51 1.00 186 up osd.9
>> > >>>> >> >> >>> > 10 hdd 14.65039 1.00000 15 TiB 10 TiB 10 TiB 650
>> > >>>> MiB 26 GiB 4.2 TiB 71.64 0.97 201 up osd.10
>> > >>>> >> >> >>> > 12 hdd 3.63689 1.00000 3.6 TiB 2.3 TiB 1.3 TiB 754
>> > >>>> MiB 0 B 1.3 TiB 64.17 0.87 44 up osd.12
>> > >>>> >> >> >>> > 13 hdd 3.63689 1.00000 3.6 TiB 2.8 TiB 813 GiB 2.4
>> > >>>> GiB 0 B 813 GiB 78.17 1.06 58 up osd.13
>> > >>>> >> >> >>> > 14 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 797 GiB 19
>> > >>>> GiB 0 B 797 GiB 78.60 1.07 56 up osd.14
>> > >>>> >> >> >>> > 15 hdd 3.63689 1.00000 3.6 TiB 2.3 TiB 1.3 TiB 2.2
>> > >>>> GiB 0 B 1.3 TiB 63.96 0.87 41 up osd.15
>> > >>>> >> >> >>> > -5 58.49872 - 58 TiB 43 TiB 36 TiB 6.7
>> > >>>> GiB 97 GiB 15 TiB 74.04 1.01 - host s3db4
>> > >>>> >> >> >>> > 11 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 940
>> > >>>> MiB 26 GiB 4.0 TiB 72.49 0.98 196 up osd.11
>> > >>>> >> >> >>> > 17 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 1022
>> > >>>> MiB 26 GiB 3.6 TiB 75.23 1.02 204 up osd.17
>> > >>>> >> >> >>> > 18 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 945
>> > >>>> MiB 45 GiB 3.8 TiB 74.16 1.01 193 up osd.18
>> > >>>> >> >> >>> > 20 hdd 3.63689 1.00000 3.6 TiB 2.6 TiB 1020 GiB 596
>> > >>>> MiB 0 B 1020 GiB 72.62 0.99 57 up osd.20
>> > >>>> >> >> >>> > 21 hdd 3.63689 1.00000 3.6 TiB 2.6 TiB 1023 GiB 1.9
>> > >>>> GiB 0 B 1023 GiB 72.54 0.98 41 up osd.21
>> > >>>> >> >> >>> > 22 hdd 3.63689 1.00000 3.6 TiB 2.6 TiB 1023 GiB 797
>> > >>>> MiB 0 B 1023 GiB 72.54 0.98 53 up osd.22
>> > >>>> >> >> >>> > 24 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 766 GiB 618
>> > >>>> MiB 0 B 766 GiB 79.42 1.08 46 up osd.24
>> > >>>> >> >> >>> > -6 58.89636 - 59 TiB 43 TiB 43 TiB 3.0
>> > >>>> GiB 108 GiB 16 TiB 73.40 1.00 - host s3db5
>> > >>>> >> >> >>> > 0 hdd 3.73630 1.00000 3.7 TiB 2.7 TiB 2.6 TiB 92
>> > >>>> MiB 7.2 GiB 1.1 TiB 71.16 0.97 45 up osd.0
>> > >>>> >> >> >>> > 25 hdd 3.73630 1.00000 3.7 TiB 2.7 TiB 2.6 TiB 2.4
>> > >>>> MiB 7.3 GiB 1.1 TiB 71.23 0.97 41 up osd.25
>> > >>>> >> >> >>> > 26 hdd 3.73630 1.00000 3.7 TiB 2.8 TiB 2.7 TiB 181
>> > >>>> MiB 7.6 GiB 935 GiB 75.57 1.03 45 up osd.26
>> > >>>> >> >> >>> > 27 hdd 3.73630 1.00000 3.7 TiB 2.7 TiB 2.6 TiB 5.1
>> > >>>> MiB 7.0 GiB 1.1 TiB 71.20 0.97 47 up osd.27
>> > >>>> >> >> >>> > 28 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 977
>> > >>>> MiB 26 GiB 3.8 TiB 73.85 1.00 197 up osd.28
>> > >>>> >> >> >>> > 29 hdd 14.65039 1.00000 15 TiB 11 TiB 10 TiB 872
>> > >>>> MiB 26 GiB 4.1 TiB 71.98 0.98 196 up osd.29
>> > >>>> >> >> >>> > 30 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 943
>> > >>>> MiB 27 GiB 3.6 TiB 75.51 1.03 202 up osd.30
>> > >>>> >> >> >>> > -7 58.89636 - 59 TiB 44 TiB 43 TiB 13
>> > >>>> GiB 122 GiB 15 TiB 74.97 1.02 - host s3db6
>> > >>>> >> >> >>> > 32 hdd 3.73630 1.00000 3.7 TiB 2.8 TiB 2.7 TiB 27
>> > >>>> MiB 7.6 GiB 940 GiB 75.42 1.02 55 up osd.32
>> > >>>> >> >> >>> > 33 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 376
>> > >>>> MiB 8.2 GiB 691 GiB 81.94 1.11 55 up osd.33
>> > >>>> >> >> >>> > 34 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 450
>> > >>>> MiB 8.5 GiB 620 GiB 83.79 1.14 54 up osd.34
>> > >>>> >> >> >>> > 35 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0 TiB 316
>> > >>>> MiB 8.4 GiB 690 GiB 81.98 1.11 50 up osd.35
>> > >>>> >> >> >>> > 36 hdd 14.65039 1.00000 15 TiB 11 TiB 10 TiB 489
>> > >>>> MiB 25 GiB 4.1 TiB 71.69 0.97 208 up osd.36
>> > >>>> >> >> >>> > 37 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 11
>> > >>>> GiB 38 GiB 4.0 TiB 72.41 0.98 195 up osd.37
>> > >>>> >> >> >>> > 38 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 1.1
>> > >>>> GiB 26 GiB 3.7 TiB 74.88 1.02 204 up osd.38
>> > >>>> >> >> >>> > -8 58.89636 - 59 TiB 44 TiB 43 TiB 3.8
>> > >>>> GiB 111 GiB 15 TiB 74.16 1.01 - host s3db7
>> > >>>> >> >> >>> > 39 hdd 3.73630 1.00000 3.7 TiB 2.8 TiB 2.7 TiB 19
>> > >>>> MiB 7.5 GiB 936 GiB 75.54 1.03 39 up osd.39
>> > >>>> >> >> >>> > 40 hdd 3.73630 1.00000 3.7 TiB 2.6 TiB 2.5 TiB 144
>> > >>>> MiB 7.1 GiB 1.1 TiB 69.87 0.95 39 up osd.40
>> > >>>> >> >> >>> > 41 hdd 3.73630 1.00000 3.7 TiB 2.7 TiB 2.7 TiB 219
>> > >>>> MiB 7.6 GiB 1011 GiB 73.57 1.00 55 up osd.41
>> > >>>> >> >> >>> > 42 hdd 3.73630 1.00000 3.7 TiB 2.6 TiB 2.5 TiB 593
>> > >>>> MiB 7.1 GiB 1.1 TiB 70.02 0.95 47 up osd.42
>> > >>>> >> >> >>> > 43 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 500
>> > >>>> MiB 27 GiB 3.7 TiB 74.67 1.01 204 up osd.43
>> > >>>> >> >> >>> > 44 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 1.1
>> > >>>> GiB 27 GiB 3.7 TiB 74.62 1.01 193 up osd.44
>> > >>>> >> >> >>> > 45 hdd 14.65039 1.00000 15 TiB 11 TiB 11 TiB 1.2
>> > >>>> GiB 29 GiB 3.6 TiB 75.16 1.02 204 up osd.45
>> > >>>> >> >> >>> > -9 51.28331 - 51 TiB 39 TiB 39 TiB 4.9
>> > >>>> GiB 107 GiB 12 TiB 76.50 1.04 - host s3db8
>> > >>>> >> >> >>> > 8 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.5 TiB 474
>> > >>>> MiB 14 GiB 1.7 TiB 76.37 1.04 98 up osd.8
>> > >>>> >> >> >>> > 16 hdd 7.32619 1.00000 7.3 TiB 5.7 TiB 5.7 TiB 783
>> > >>>> MiB 15 GiB 1.6 TiB 78.39 1.06 100 up osd.16
>> > >>>> >> >> >>> > 31 hdd 7.32619 1.00000 7.3 TiB 5.7 TiB 5.6 TiB 441
>> > >>>> MiB 14 GiB 1.6 TiB 77.70 1.05 91 up osd.31
>> > >>>> >> >> >>> > 52 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.5 TiB 939
>> > >>>> MiB 14 GiB 1.7 TiB 76.29 1.04 102 up osd.52
>> > >>>> >> >> >>> > 53 hdd 7.32619 1.00000 7.3 TiB 5.4 TiB 5.4 TiB 848
>> > >>>> MiB 18 GiB 1.9 TiB 74.30 1.01 98 up osd.53
>> > >>>> >> >> >>> > 54 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.6 TiB 1.0
>> > >>>> GiB 16 GiB 1.7 TiB 76.99 1.05 106 up osd.54
>> > >>>> >> >> >>> > 55 hdd 7.32619 1.00000 7.3 TiB 5.5 TiB 5.5 TiB 460
>> > >>>> MiB 15 GiB 1.8 TiB 75.46 1.02 105 up osd.55
>> > >>>> >> >> >>> > -10 51.28331 - 51 TiB 37 TiB 37 TiB 3.8
>> > >>>> GiB 96 GiB 14 TiB 72.77 0.99 - host s3db9
>> > >>>> >> >> >>> > 56 hdd 7.32619 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 846
>> > >>>> MiB 13 GiB 2.1 TiB 71.16 0.97 104 up osd.56
>> > >>>> >> >> >>> > 57 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.6 TiB 513
>> > >>>> MiB 15 GiB 1.7 TiB 76.53 1.04 96 up osd.57
>> > >>>> >> >> >>> > 58 hdd 7.32619 1.00000 7.3 TiB 5.2 TiB 5.2 TiB 604
>> > >>>> MiB 13 GiB 2.1 TiB 71.23 0.97 98 up osd.58
>> > >>>> >> >> >>> > 59 hdd 7.32619 1.00000 7.3 TiB 5.1 TiB 5.1 TiB 414
>> > >>>> MiB 13 GiB 2.2 TiB 70.03 0.95 88 up osd.59
>> > >>>> >> >> >>> > 60 hdd 7.32619 1.00000 7.3 TiB 5.5 TiB 5.5 TiB 227
>> > >>>> MiB 14 GiB 1.8 TiB 75.54 1.03 97 up osd.60
>> > >>>> >> >> >>> > 61 hdd 7.32619 1.00000 7.3 TiB 5.1 TiB 5.1 TiB 456
>> > >>>> MiB 13 GiB 2.2 TiB 70.01 0.95 95 up osd.61
>> > >>>> >> >> >>> > 62 hdd 7.32619 1.00000 7.3 TiB 5.5 TiB 5.4 TiB 843
>> > >>>> MiB 14 GiB 1.8 TiB 74.93 1.02 110 up osd.62
>> > >>>> >> >> >>> > TOTAL 674 TiB 496 TiB 468 TiB 97
>> > >>>> GiB 1.2 TiB 177 TiB 73.67
>> > >>>> >> >> >>> > MIN/MAX VAR: 0.87/1.14 STDDEV: 4.22
>> > >>>> >> >> >>> >
>> > >>>> >> >> >>> > Am Mo., 15. März 2021 um 15:02 Uhr schrieb Dan van der Ster
>> > >>>> <dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>> >>
>> > >>>> >> >> >>> >> OK thanks. Indeed "prepared 0/10 changes" means it thinks
>> > >>>> things are balanced.
>> > >>>> >> >> >>> >> Could you again share the full ceph osd df tree?
>> > >>>> >> >> >>> >>
>> > >>>> >> >> >>> >> On Mon, Mar 15, 2021 at 2:54 PM Boris Behrens <
>> > >>>> bb@xxxxxxxxx> wrote:
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> > Hi Dan,
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> > I've set the autoscaler to warn, but it actually does
>> > >>>> not warn for now. So not touching it for now.
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> > this is what the log says in minute intervals:
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/active
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/sleep_interval
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/begin_time
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/end_time
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/begin_weekday
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.970 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/end_weekday
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:00.971 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/pool_ids
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr[balancer]
>> > >>>> Optimize plan auto_2021-03-15_13:51:00
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/mode
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr[balancer]
>> > >>>> Mode upmap, max misplaced 0.050000
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr[balancer]
>> > >>>> do_upmap
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/upmap_max_iterations
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr get_config
>> > >>>> get_config key: mgr/balancer/upmap_max_deviation
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.203 7f307d5fd700 4 mgr[balancer]
>> > >>>> pools ['eu-msg-1.rgw.data.root', 'eu-msg-1.rgw.buckets.non-ec',
>> > >>>> 'eu-central-1.rgw.users.keys', 'eu-central-1.rgw.gc',
>> > >>>> 'eu-central-1.rgw.buckets.data', 'eu-central-1.rgw.users.email',
>> > >>>> 'eu-msg-1.rgw.gc', 'eu-central-1.rgw.usage', 'eu-msg-1.rgw.users.keys',
>> > >>>> 'eu-central-1.rgw.buckets.index', 'rbd', 'eu-msg-1.rgw.log',
>> > >>>> 'whitespace-again-2021-03-10_2', 'eu-msg-1.rgw.buckets.index',
>> > >>>> 'eu-msg-1.rgw.meta', 'eu-central-1.rgw.log', 'default.rgw.gc',
>> > >>>> 'eu-central-1.rgw.buckets.non-ec', 'eu-msg-1.rgw.usage',
>> > >>>> 'whitespace-again-2021-03-10', 'fra-1.rgw.meta',
>> > >>>> 'eu-central-1.rgw.users.uid', 'eu-msg-1.rgw.users.email',
>> > >>>> 'fra-1.rgw.control', 'eu-msg-1.rgw.users.uid', 'eu-msg-1.rgw.control',
>> > >>>> '.rgw.root', 'eu-msg-1.rgw.buckets.data', 'default.rgw.control',
>> > >>>> 'fra-1.rgw.log', 'default.rgw.data.root', 'whitespace-again-2021-03-10_3',
>> > >>>> 'default.rgw.log', 'eu-central-1.rgw.meta', 'eu-central-1.rgw.data.root',
>> > >>>> 'default.rgw.users.uid', 'eu-central-1.rgw.control']
>> > >>>> >> >> >>> >> > 2021-03-15 13:51:01.224 7f307d5fd700 4 mgr[balancer]
>> > >>>> prepared 0/10 changes
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> > Am Mo., 15. März 2021 um 14:15 Uhr schrieb Dan van der
>> > >>>> Ster <dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>> >> >>
>> > >>>> >> >> >>> >> >> I suggest to just disable the autoscaler until your
>> > >>>> balancing is understood.
>> > >>>> >> >> >>> >> >>
>> > >>>> >> >> >>> >> >> What does your active mgr log say (with debug_mgr 4/5),
>> > >>>> grep balancer
>> > >>>> >> >> >>> >> >> /var/log/ceph/ceph-mgr.*.log
>> > >>>> >> >> >>> >> >>
>> > >>>> >> >> >>> >> >> -- Dan
>> > >>>> >> >> >>> >> >>
>> > >>>> >> >> >>> >> >> On Mon, Mar 15, 2021 at 1:47 PM Boris Behrens <
>> > >>>> bb@xxxxxxxxx> wrote:
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> > Hi,
>> > >>>> >> >> >>> >> >> > this unfortunally did not solve my problem. I still
>> > >>>> have some OSDs that fill up to 85%
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> > According to the logging, the autoscaler might want
>> > >>>> to add more PGs to one Bucken and reduce almost all other buckets to 32.
>> > >>>> >> >> >>> >> >> > 2021-03-15 12:19:58.825 7f307f601700 4
>> > >>>> mgr[pg_autoscaler] Pool 'eu-central-1.rgw.buckets.data' root_id -1 using
>> > >>>> 0.705080476146 of space, bias 1.0, pg target 1974.22533321 quantized to
>> > >>>> 2048 (current 1024)
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> > Why the balancing does not happen is still nebulous
>> > >>>> to me.
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> > Am Sa., 13. März 2021 um 16:37 Uhr schrieb Dan van
>> > >>>> der Ster <dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>> >> >> >>
>> > >>>> >> >> >>> >> >> >> OK
>> > >>>> >> >> >>> >> >> >> Btw, you might need to fail to a new mgr... I'm not
>> > >>>> sure if the current active will read that new config.
>> > >>>> >> >> >>> >> >> >>
>> > >>>> >> >> >>> >> >> >> .. dan
>> > >>>> >> >> >>> >> >> >>
>> > >>>> >> >> >>> >> >> >>
>> > >>>> >> >> >>> >> >> >> On Sat, Mar 13, 2021, 4:36 PM Boris Behrens <
>> > >>>> bb@xxxxxxxxx> wrote:
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>> Hi,
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>> ok thanks. I just changed the value and rewighted
>> > >>>> everything back to 1. Now I let it sync the weekend and check how it will
>> > >>>> be on monday.
>> > >>>> >> >> >>> >> >> >>> We tried to have the systems total storage balanced
>> > >>>> as possible. New systems will be with 8TB disks but for the exiting ones we
>> > >>>> added 16TB to offset the 4TB disks and we needed a lot of storage fast,
>> > >>>> because of a DC move. If you have any recommendations I would be happy to
>> > >>>> hear them.
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>> Cheers
>> > >>>> >> >> >>> >> >> >>> Boris
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>> Am Sa., 13. März 2021 um 16:20 Uhr schrieb Dan van
>> > >>>> der Ster <dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> Thanks.
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> Decreasing the max deviation to 2 or 1 should help
>> > >>>> in your case. This option controls when the balancer stops trying to move
>> > >>>> PGs around -- by default it stops when the deviation from the mean is 5.
>> > >>>> Yes this is too large IMO -- all of our clusters have this set to 1.
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> And given that you have some OSDs with more than
>> > >>>> 200 PGs, you definitely shouldn't increase the num PGs.
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> But anyway with your mixed device sizes it might
>> > >>>> be challenging to make a perfectly uniform distribution. Give it a try with
>> > >>>> 1 though, and let us know how it goes.
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> .. Dan
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>>
>> > >>>> >> >> >>> >> >> >>>> On Sat, Mar 13, 2021, 4:11 PM Boris Behrens <
>> > >>>> bb@xxxxxxxxx> wrote:
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> Hi Dan,
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> upmap_max_deviation is default (5) in our
>> > >>>> cluster. Is 1 the recommended deviation?
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> I added the whole ceph osd df tree, (I need to
>> > >>>> remove some OSDs and readd them as bluestore with SSD, so 69, 73 and 82 are
>> > >>>> a bit off now. I also reweighted to try to get the %USE mitigated).
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> I will increase the mgr debugging to see what is
>> > >>>> the problem.
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> [root@s3db1 ~]# ceph osd df tree
>> > >>>> >> >> >>> >> >> >>>>> ID CLASS WEIGHT REWEIGHT SIZE RAW USE
>> > >>>> DATA OMAP META AVAIL %USE VAR PGS STATUS TYPE NAME
>> > >>>> >> >> >>> >> >> >>>>> -1 673.54224 - 659 TiB 491 TiB 464
>> > >>>> TiB 96 GiB 1.2 TiB 168 TiB 74.57 1.00 - root default
>> > >>>> >> >> >>> >> >> >>>>> -2 58.30331 - 44 TiB 22 TiB 17
>> > >>>> TiB 5.7 GiB 38 GiB 22 TiB 49.82 0.67 - host s3db1
>> > >>>> >> >> >>> >> >> >>>>> 23 hdd 14.65039 1.00000 15 TiB 1.8 TiB 1.7
>> > >>>> TiB 156 MiB 4.4 GiB 13 TiB 12.50 0.17 101 up osd.23
>> > >>>> >> >> >>> >> >> >>>>> 69 hdd 14.55269 0 0 B 0 B
>> > >>>> 0 B 0 B 0 B 0 B 0 0 11 up osd.69
>> > >>>> >> >> >>> >> >> >>>>> 73 hdd 14.55269 1.00000 15 TiB 10 TiB 10
>> > >>>> TiB 6.1 MiB 33 GiB 4.2 TiB 71.15 0.95 107 up osd.73
>> > >>>> >> >> >>> >> >> >>>>> 79 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 747
>> > >>>> GiB 2.0 GiB 0 B 747 GiB 79.94 1.07 52 up osd.79
>> > >>>> >> >> >>> >> >> >>>>> 80 hdd 3.63689 1.00000 3.6 TiB 2.6 TiB 1.0
>> > >>>> TiB 1.9 GiB 0 B 1.0 TiB 71.61 0.96 58 up osd.80
>> > >>>> >> >> >>> >> >> >>>>> 81 hdd 3.63689 1.00000 3.6 TiB 2.2 TiB 1.5
>> > >>>> TiB 1.1 GiB 0 B 1.5 TiB 60.07 0.81 55 up osd.81
>> > >>>> >> >> >>> >> >> >>>>> 82 hdd 3.63689 1.00000 3.6 TiB 1.9 TiB 1.7
>> > >>>> TiB 536 MiB 0 B 1.7 TiB 52.68 0.71 30 up osd.82
>> > >>>> >> >> >>> >> >> >>>>> -11 50.94173 - 51 TiB 38 TiB 38
>> > >>>> TiB 3.7 GiB 100 GiB 13 TiB 74.69 1.00 - host s3db10
>> > >>>> >> >> >>> >> >> >>>>> 63 hdd 7.27739 1.00000 7.3 TiB 5.5 TiB 5.5
>> > >>>> TiB 616 MiB 14 GiB 1.7 TiB 76.04 1.02 92 up osd.63
>> > >>>> >> >> >>> >> >> >>>>> 64 hdd 7.27739 1.00000 7.3 TiB 5.5 TiB 5.5
>> > >>>> TiB 820 MiB 15 GiB 1.8 TiB 75.54 1.01 101 up osd.64
>> > >>>> >> >> >>> >> >> >>>>> 65 hdd 7.27739 1.00000 7.3 TiB 5.3 TiB 5.3
>> > >>>> TiB 109 MiB 14 GiB 2.0 TiB 73.17 0.98 105 up osd.65
>> > >>>> >> >> >>> >> >> >>>>> 66 hdd 7.27739 1.00000 7.3 TiB 5.8 TiB 5.8
>> > >>>> TiB 423 MiB 15 GiB 1.4 TiB 80.38 1.08 98 up osd.66
>> > >>>> >> >> >>> >> >> >>>>> 67 hdd 7.27739 1.00000 7.3 TiB 5.1 TiB 5.1
>> > >>>> TiB 572 MiB 14 GiB 2.2 TiB 70.10 0.94 100 up osd.67
>> > >>>> >> >> >>> >> >> >>>>> 68 hdd 7.27739 1.00000 7.3 TiB 5.3 TiB 5.3
>> > >>>> TiB 630 MiB 13 GiB 2.0 TiB 72.88 0.98 107 up osd.68
>> > >>>> >> >> >>> >> >> >>>>> 70 hdd 7.27739 1.00000 7.3 TiB 5.4 TiB 5.4
>> > >>>> TiB 648 MiB 14 GiB 1.8 TiB 74.73 1.00 102 up osd.70
>> > >>>> >> >> >>> >> >> >>>>> -12 50.99052 - 51 TiB 39 TiB 39
>> > >>>> TiB 2.9 GiB 99 GiB 12 TiB 77.24 1.04 - host s3db11
>> > >>>> >> >> >>> >> >> >>>>> 46 hdd 7.27739 1.00000 7.3 TiB 5.7 TiB 5.7
>> > >>>> TiB 102 MiB 15 GiB 1.5 TiB 78.91 1.06 97 up osd.46
>> > >>>> >> >> >>> >> >> >>>>> 47 hdd 7.27739 1.00000 7.3 TiB 5.2 TiB 5.2
>> > >>>> TiB 61 MiB 13 GiB 2.1 TiB 71.47 0.96 96 up osd.47
>> > >>>> >> >> >>> >> >> >>>>> 48 hdd 7.27739 1.00000 7.3 TiB 6.1 TiB 6.1
>> > >>>> TiB 853 MiB 15 GiB 1.2 TiB 83.46 1.12 109 up osd.48
>> > >>>> >> >> >>> >> >> >>>>> 49 hdd 7.27739 1.00000 7.3 TiB 5.7 TiB 5.7
>> > >>>> TiB 708 MiB 15 GiB 1.5 TiB 78.96 1.06 98 up osd.49
>> > >>>> >> >> >>> >> >> >>>>> 50 hdd 7.27739 1.00000 7.3 TiB 5.9 TiB 5.8
>> > >>>> TiB 472 MiB 15 GiB 1.4 TiB 80.40 1.08 102 up osd.50
>> > >>>> >> >> >>> >> >> >>>>> 51 hdd 7.27739 1.00000 7.3 TiB 5.9 TiB 5.9
>> > >>>> TiB 729 MiB 15 GiB 1.3 TiB 81.70 1.10 110 up osd.51
>> > >>>> >> >> >>> >> >> >>>>> 72 hdd 7.32619 1.00000 7.3 TiB 4.8 TiB 4.8
>> > >>>> TiB 91 MiB 12 GiB 2.5 TiB 65.82 0.88 89 up osd.72
>> > >>>> >> >> >>> >> >> >>>>> -37 58.55478 - 59 TiB 46 TiB 46
>> > >>>> TiB 5.0 GiB 124 GiB 12 TiB 79.04 1.06 - host s3db12
>> > >>>> >> >> >>> >> >> >>>>> 19 hdd 3.68750 1.00000 3.7 TiB 3.1 TiB 3.1
>> > >>>> TiB 462 MiB 8.2 GiB 559 GiB 85.18 1.14 55 up osd.19
>> > >>>> >> >> >>> >> >> >>>>> 71 hdd 3.68750 1.00000 3.7 TiB 2.9 TiB 2.8
>> > >>>> TiB 3.9 MiB 7.8 GiB 825 GiB 78.14 1.05 50 up osd.71
>> > >>>> >> >> >>> >> >> >>>>> 75 hdd 3.68750 1.00000 3.7 TiB 3.1 TiB 3.1
>> > >>>> TiB 576 MiB 8.3 GiB 555 GiB 85.29 1.14 57 up osd.75
>> > >>>> >> >> >>> >> >> >>>>> 76 hdd 3.68750 1.00000 3.7 TiB 3.2 TiB 3.1
>> > >>>> TiB 239 MiB 9.3 GiB 501 GiB 86.73 1.16 50 up osd.76
>> > >>>> >> >> >>> >> >> >>>>> 77 hdd 14.60159 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 880 MiB 30 GiB 3.6 TiB 75.57 1.01 202 up osd.77
>> > >>>> >> >> >>> >> >> >>>>> 78 hdd 14.60159 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 1.0 GiB 30 GiB 3.4 TiB 76.65 1.03 196 up osd.78
>> > >>>> >> >> >>> >> >> >>>>> 83 hdd 14.60159 1.00000 15 TiB 12 TiB 12
>> > >>>> TiB 1.8 GiB 31 GiB 2.9 TiB 80.04 1.07 223 up osd.83
>> > >>>> >> >> >>> >> >> >>>>> -3 58.49872 - 58 TiB 43 TiB 38
>> > >>>> TiB 8.1 GiB 91 GiB 16 TiB 73.15 0.98 - host s3db2
>> > >>>> >> >> >>> >> >> >>>>> 1 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 3.1 GiB 38 GiB 3.6 TiB 75.52 1.01 194 up osd.1
>> > >>>> >> >> >>> >> >> >>>>> 3 hdd 3.63689 1.00000 3.6 TiB 2.2 TiB 1.4
>> > >>>> TiB 418 MiB 0 B 1.4 TiB 60.94 0.82 52 up osd.3
>> > >>>> >> >> >>> >> >> >>>>> 4 hdd 3.63689 0.89999 3.6 TiB 3.2 TiB 401
>> > >>>> GiB 845 MiB 0 B 401 GiB 89.23 1.20 53 up osd.4
>> > >>>> >> >> >>> >> >> >>>>> 5 hdd 3.63689 1.00000 3.6 TiB 2.3 TiB 1.3
>> > >>>> TiB 437 MiB 0 B 1.3 TiB 62.88 0.84 51 up osd.5
>> > >>>> >> >> >>> >> >> >>>>> 6 hdd 3.63689 1.00000 3.6 TiB 2.0 TiB 1.7
>> > >>>> TiB 1.8 GiB 0 B 1.7 TiB 54.51 0.73 47 up osd.6
>> > >>>> >> >> >>> >> >> >>>>> 7 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 493 MiB 26 GiB 3.8 TiB 73.90 0.99 185 up osd.7
>> > >>>> >> >> >>> >> >> >>>>> 74 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 1.1 GiB 27 GiB 3.5 TiB 76.27 1.02 208 up osd.74
>> > >>>> >> >> >>> >> >> >>>>> -4 58.49872 - 58 TiB 43 TiB 37
>> > >>>> TiB 33 GiB 86 GiB 15 TiB 74.05 0.99 - host s3db3
>> > >>>> >> >> >>> >> >> >>>>> 2 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 850 MiB 26 GiB 4.0 TiB 72.78 0.98 203 up osd.2
>> > >>>> >> >> >>> >> >> >>>>> 9 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 8.3 GiB 33 GiB 3.6 TiB 75.62 1.01 189 up osd.9
>> > >>>> >> >> >>> >> >> >>>>> 10 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 663 MiB 28 GiB 3.5 TiB 76.34 1.02 211 up osd.10
>> > >>>> >> >> >>> >> >> >>>>> 12 hdd 3.63689 1.00000 3.6 TiB 2.4 TiB 1.2
>> > >>>> TiB 633 MiB 0 B 1.2 TiB 66.22 0.89 44 up osd.12
>> > >>>> >> >> >>> >> >> >>>>> 13 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 720
>> > >>>> GiB 2.3 GiB 0 B 720 GiB 80.66 1.08 66 up osd.13
>> > >>>> >> >> >>> >> >> >>>>> 14 hdd 3.63689 1.00000 3.6 TiB 3.1 TiB 552
>> > >>>> GiB 18 GiB 0 B 552 GiB 85.18 1.14 60 up osd.14
>> > >>>> >> >> >>> >> >> >>>>> 15 hdd 3.63689 1.00000 3.6 TiB 2.0 TiB 1.7
>> > >>>> TiB 2.1 GiB 0 B 1.7 TiB 53.72 0.72 44 up osd.15
>> > >>>> >> >> >>> >> >> >>>>> -5 58.49872 - 58 TiB 45 TiB 37
>> > >>>> TiB 7.2 GiB 99 GiB 14 TiB 76.37 1.02 - host s3db4
>> > >>>> >> >> >>> >> >> >>>>> 11 hdd 14.65039 1.00000 15 TiB 12 TiB 12
>> > >>>> TiB 897 MiB 28 GiB 2.8 TiB 81.15 1.09 205 up osd.11
>> > >>>> >> >> >>> >> >> >>>>> 17 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 1.2 GiB 27 GiB 3.6 TiB 75.38 1.01 211 up osd.17
>> > >>>> >> >> >>> >> >> >>>>> 18 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 965 MiB 44 GiB 4.0 TiB 72.86 0.98 188 up osd.18
>> > >>>> >> >> >>> >> >> >>>>> 20 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 796
>> > >>>> GiB 529 MiB 0 B 796 GiB 78.63 1.05 66 up osd.20
>> > >>>> >> >> >>> >> >> >>>>> 21 hdd 3.63689 1.00000 3.6 TiB 2.6 TiB 1.1
>> > >>>> TiB 2.1 GiB 0 B 1.1 TiB 70.32 0.94 47 up osd.21
>> > >>>> >> >> >>> >> >> >>>>> 22 hdd 3.63689 1.00000 3.6 TiB 2.9 TiB 802
>> > >>>> GiB 882 MiB 0 B 802 GiB 78.47 1.05 58 up osd.22
>> > >>>> >> >> >>> >> >> >>>>> 24 hdd 3.63689 1.00000 3.6 TiB 2.8 TiB 856
>> > >>>> GiB 645 MiB 0 B 856 GiB 77.01 1.03 47 up osd.24
>> > >>>> >> >> >>> >> >> >>>>> -6 58.89636 - 59 TiB 44 TiB 44
>> > >>>> TiB 2.4 GiB 111 GiB 15 TiB 75.22 1.01 - host s3db5
>> > >>>> >> >> >>> >> >> >>>>> 0 hdd 3.73630 1.00000 3.7 TiB 2.4 TiB 2.3
>> > >>>> TiB 70 MiB 6.6 GiB 1.3 TiB 65.00 0.87 48 up osd.0
>> > >>>> >> >> >>> >> >> >>>>> 25 hdd 3.73630 1.00000 3.7 TiB 2.4 TiB 2.3
>> > >>>> TiB 5.3 MiB 6.6 GiB 1.4 TiB 63.86 0.86 41 up osd.25
>> > >>>> >> >> >>> >> >> >>>>> 26 hdd 3.73630 1.00000 3.7 TiB 2.9 TiB 2.8
>> > >>>> TiB 181 MiB 7.6 GiB 862 GiB 77.47 1.04 48 up osd.26
>> > >>>> >> >> >>> >> >> >>>>> 27 hdd 3.73630 1.00000 3.7 TiB 2.3 TiB 2.2
>> > >>>> TiB 7.0 MiB 6.1 GiB 1.5 TiB 61.00 0.82 48 up osd.27
>> > >>>> >> >> >>> >> >> >>>>> 28 hdd 14.65039 1.00000 15 TiB 12 TiB 12
>> > >>>> TiB 937 MiB 30 GiB 2.8 TiB 81.19 1.09 203 up osd.28
>> > >>>> >> >> >>> >> >> >>>>> 29 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 536 MiB 26 GiB 3.8 TiB 73.95 0.99 200 up osd.29
>> > >>>> >> >> >>> >> >> >>>>> 30 hdd 14.65039 1.00000 15 TiB 12 TiB 11
>> > >>>> TiB 744 MiB 28 GiB 3.1 TiB 79.07 1.06 207 up osd.30
>> > >>>> >> >> >>> >> >> >>>>> -7 58.89636 - 59 TiB 44 TiB 44
>> > >>>> TiB 14 GiB 122 GiB 14 TiB 75.41 1.01 - host s3db6
>> > >>>> >> >> >>> >> >> >>>>> 32 hdd 3.73630 1.00000 3.7 TiB 3.1 TiB 3.0
>> > >>>> TiB 16 MiB 8.2 GiB 622 GiB 83.74 1.12 65 up osd.32
>> > >>>> >> >> >>> >> >> >>>>> 33 hdd 3.73630 0.79999 3.7 TiB 3.0 TiB 2.9
>> > >>>> TiB 14 MiB 8.1 GiB 740 GiB 80.67 1.08 52 up osd.33
>> > >>>> >> >> >>> >> >> >>>>> 34 hdd 3.73630 0.79999 3.7 TiB 2.9 TiB 2.8
>> > >>>> TiB 449 MiB 7.7 GiB 877 GiB 77.08 1.03 52 up osd.34
>> > >>>> >> >> >>> >> >> >>>>> 35 hdd 3.73630 0.79999 3.7 TiB 2.3 TiB 2.2
>> > >>>> TiB 133 MiB 7.0 GiB 1.4 TiB 62.18 0.83 42 up osd.35
>> > >>>> >> >> >>> >> >> >>>>> 36 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 544 MiB 26 GiB 4.0 TiB 72.98 0.98 220 up osd.36
>> > >>>> >> >> >>> >> >> >>>>> 37 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 11 GiB 38 GiB 3.6 TiB 75.30 1.01 200 up osd.37
>> > >>>> >> >> >>> >> >> >>>>> 38 hdd 14.65039 1.00000 15 TiB 11 TiB 11
>> > >>>> TiB 1.2 GiB 28 GiB 3.3 TiB 77.43 1.04 217 up osd.38
>> > >>>> >> >> >>> >> >> >>>>> -8 58.89636 - 59 TiB 47 TiB 46
>> > >>>> TiB 3.9 GiB 116 GiB 12 TiB 78.98 1.06 - host s3db7
>> > >>>> >> >> >>> >> >> >>>>> 39 hdd 3.73630 1.00000 3.7 TiB 3.2 TiB 3.2
>> > >>>> TiB 19 MiB 8.5 GiB 499 GiB 86.96 1.17 43 up osd.39
>> > >>>> >> >> >>> >> >> >>>>> 40 hdd 3.73630 1.00000 3.7 TiB 2.6 TiB 2.5
>> > >>>> TiB 144 MiB 7.0 GiB 1.2 TiB 68.33 0.92 39 up osd.40
>> > >>>> >> >> >>> >> >> >>>>> 41 hdd 3.73630 1.00000 3.7 TiB 3.0 TiB 2.9
>> > >>>> TiB 218 MiB 7.9 GiB 732 GiB 80.86 1.08 64 up osd.41
>> > >>>> >> >> >>> >> >> >>>>> 42 hdd 3.73630 1.00000 3.7 TiB 2.5 TiB 2.4
>> > >>>> TiB 594 MiB 7.0 GiB 1.2 TiB 67.97 0.91 50 up osd.42
>> > >>>> >> >> >>> >> >> >>>>> 43 hdd 14.65039 1.00000 15 TiB 12 TiB 12
>> > >>>> TiB 564 MiB 28 GiB 2.9 TiB 80.32 1.08 213 up osd.43
>> > >>>> >> >> >>> >> >> >>>>> 44 hdd 14.65039 1.00000 15 TiB 12 TiB 11
>> > >>>> TiB 1.3 GiB 28 GiB 3.1 TiB 78.59 1.05 198 up osd.44
>> > >>>> >> >> >>> >> >> >>>>> 45 hdd 14.65039 1.00000 15 TiB 12 TiB 12
>> > >>>> TiB 1.2 GiB 30 GiB 2.8 TiB 81.05 1.09 214 up osd.45
>> > >>>> >> >> >>> >> >> >>>>> -9 51.28331 - 51 TiB 41 TiB 41
>> > >>>> TiB 4.9 GiB 108 GiB 10 TiB 79.75 1.07 - host s3db8
>> > >>>> >> >> >>> >> >> >>>>> 8 hdd 7.32619 1.00000 7.3 TiB 5.8 TiB 5.8
>> > >>>> TiB 472 MiB 15 GiB 1.5 TiB 79.68 1.07 99 up osd.8
>> > >>>> >> >> >>> >> >> >>>>> 16 hdd 7.32619 1.00000 7.3 TiB 5.9 TiB 5.8
>> > >>>> TiB 785 MiB 15 GiB 1.4 TiB 80.25 1.08 97 up osd.16
>> > >>>> >> >> >>> >> >> >>>>> 31 hdd 7.32619 1.00000 7.3 TiB 5.5 TiB 5.5
>> > >>>> TiB 438 MiB 14 GiB 1.8 TiB 75.36 1.01 87 up osd.31
>> > >>>> >> >> >>> >> >> >>>>> 52 hdd 7.32619 1.00000 7.3 TiB 5.7 TiB 5.7
>> > >>>> TiB 844 MiB 15 GiB 1.6 TiB 78.19 1.05 113 up osd.52
>> > >>>> >> >> >>> >> >> >>>>> 53 hdd 7.32619 1.00000 7.3 TiB 6.2 TiB 6.1
>> > >>>> TiB 792 MiB 18 GiB 1.1 TiB 84.46 1.13 109 up osd.53
>> > >>>> >> >> >>> >> >> >>>>> 54 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.6
>> > >>>> TiB 959 MiB 15 GiB 1.7 TiB 76.73 1.03 115 up osd.54
>> > >>>> >> >> >>> >> >> >>>>> 55 hdd 7.32619 1.00000 7.3 TiB 6.1 TiB 6.1
>> > >>>> TiB 699 MiB 16 GiB 1.2 TiB 83.56 1.12 122 up osd.55
>> > >>>> >> >> >>> >> >> >>>>> -10 51.28331 - 51 TiB 39 TiB 39
>> > >>>> TiB 4.7 GiB 100 GiB 12 TiB 76.05 1.02 - host s3db9
>> > >>>> >> >> >>> >> >> >>>>> 56 hdd 7.32619 1.00000 7.3 TiB 5.2 TiB 5.2
>> > >>>> TiB 840 MiB 13 GiB 2.1 TiB 71.06 0.95 105 up osd.56
>> > >>>> >> >> >>> >> >> >>>>> 57 hdd 7.32619 1.00000 7.3 TiB 6.1 TiB 6.0
>> > >>>> TiB 1.0 GiB 16 GiB 1.2 TiB 83.17 1.12 102 up osd.57
>> > >>>> >> >> >>> >> >> >>>>> 58 hdd 7.32619 1.00000 7.3 TiB 6.0 TiB 5.9
>> > >>>> TiB 43 MiB 15 GiB 1.4 TiB 81.56 1.09 105 up osd.58
>> > >>>> >> >> >>> >> >> >>>>> 59 hdd 7.32619 1.00000 7.3 TiB 5.9 TiB 5.9
>> > >>>> TiB 429 MiB 15 GiB 1.4 TiB 80.64 1.08 94 up osd.59
>> > >>>> >> >> >>> >> >> >>>>> 60 hdd 7.32619 1.00000 7.3 TiB 5.4 TiB 5.3
>> > >>>> TiB 226 MiB 14 GiB 2.0 TiB 73.25 0.98 101 up osd.60
>> > >>>> >> >> >>> >> >> >>>>> 61 hdd 7.32619 1.00000 7.3 TiB 4.8 TiB 4.8
>> > >>>> TiB 1.1 GiB 12 GiB 2.5 TiB 65.84 0.88 103 up osd.61
>> > >>>> >> >> >>> >> >> >>>>> 62 hdd 7.32619 1.00000 7.3 TiB 5.6 TiB 5.6
>> > >>>> TiB 1.0 GiB 15 GiB 1.7 TiB 76.83 1.03 126 up osd.62
>> > >>>> >> >> >>> >> >> >>>>> TOTAL 674 TiB 501 TiB 473
>> > >>>> TiB 96 GiB 1.2 TiB 173 TiB 74.57
>> > >>>> >> >> >>> >> >> >>>>> MIN/MAX VAR: 0.17/1.20 STDDEV: 10.25
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> Am Sa., 13. März 2021 um 15:57 Uhr schrieb Dan
>> > >>>> van der Ster <dan@xxxxxxxxxxxxxx>:
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> No, increasing num PGs won't help substantially.
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> Can you share the entire output of ceph osd df
>> > >>>> tree ?
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> Did you already set
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> ceph config set mgr
>> > >>>> mgr/balancer/upmap_max_deviation 1
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> ??
>> > >>>> >> >> >>> >> >> >>>>>> And I recommend debug_mgr 4/5 so you can see
>> > >>>> some basic upmap balancer logging.
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> .. Dan
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>
>> > >>>> >> >> >>> >> >> >>>>>> On Sat, Mar 13, 2021, 3:49 PM Boris Behrens <
>> > >>>> bb@xxxxxxxxx> wrote:
>> > >>>> >> >> >>> >> >> >>>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>> Hello people,
>> > >>>> >> >> >>> >> >> >>>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>> I am still struggeling with the balancer
>> > >>>> >> >> >>> >> >> >>>>>>> (
>> > >>>> https://www.mail-archive.com/ceph-users@xxxxxxx/msg09124.html)
>> > >>>> >> >> >>> >> >> >>>>>>> Now I've read some more and might think that I
>> > >>>> do not have enough PGs.
>> > >>>> >> >> >>> >> >> >>>>>>> Currently I have 84OSDs and 1024PGs for the
>> > >>>> main pool (3008 total). I
>> > >>>> >> >> >>> >> >> >>>>>>> have the autoscaler enabled, but I doesn't tell
>> > >>>> me to increase the
>> > >>>> >> >> >>> >> >> >>>>>>> PGs.
>> > >>>> >> >> >>> >> >> >>>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>> What do you think?
>> > >>>> >> >> >>> >> >> >>>>>>>
>> > >>>> >> >> >>> >> >> >>>>>>> --
>> > >>>> >> >> >>> >> >> >>>>>>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft
>> > >>>> sich diesmal abweichend
>> > >>>> >> >> >>> >> >> >>>>>>> im groüen Saal.
>> > >>>> >> >> >>> >> >> >>>>>>> _______________________________________________
>> > >>>> >> >> >>> >> >> >>>>>>> ceph-users mailing list -- ceph-users@xxxxxxx
>> > >>>> >> >> >>> >> >> >>>>>>> To unsubscribe send an email to
>> > >>>> ceph-users-leave@xxxxxxx
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>>
>> > >>>> >> >> >>> >> >> >>>>> --
>> > >>>> >> >> >>> >> >> >>>>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft
>> > >>>> sich diesmal abweichend im groüen Saal.
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>>
>> > >>>> >> >> >>> >> >> >>> --
>> > >>>> >> >> >>> >> >> >>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
>> > >>>> diesmal abweichend im groüen Saal.
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> >
>> > >>>> >> >> >>> >> >> > --
>> > >>>> >> >> >>> >> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
>> > >>>> diesmal abweichend im groüen Saal.
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> >
>> > >>>> >> >> >>> >> > --
>> > >>>> >> >> >>> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich
>> > >>>> diesmal abweichend im groüen Saal.
>> > >>>> >> >> >>> >
>> > >>>> >> >> >>> >
>> > >>>> >> >> >>> >
>> > >>>> >> >> >>> > --
>> > >>>> >> >> >>> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
>> > >>>> abweichend im groüen Saal.
>> > >>>> >> >> >>
>> > >>>> >> >> >>
>> > >>>> >> >> >>
>> > >>>> >> >> >> --
>> > >>>> >> >> >> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
>> > >>>> abweichend im groüen Saal.
>> > >>>> >> >> >
>> > >>>> >> >> >
>> > >>>> >> >> >
>> > >>>> >> >> > --
>> > >>>> >> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
>> > >>>> abweichend im groüen Saal.
>> > >>>> >> >
>> > >>>> >> >
>> > >>>> >> >
>> > >>>> >> > --
>> > >>>> >> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal
>> > >>>> abweichend im groüen Saal.
>> > >>>> >
>> > >>>> >
>> > >>>> >
>> > >>>> > --
>> > >>>> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend
>> > >>>> im groüen Saal.
>> > >>>>
>> > >>>
>> > >>>
>> > >>> --
>> > >>> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
>> > >>> groüen Saal.
>> > >>>
>> > >>
>> > >
>> > > --
>> > > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
>> > > groüen Saal.
>> > >
>> >
>> >
>> > --
>> > Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
>> > groüen Saal.
>> > _______________________________________________
>> > ceph-users mailing list -- ceph-users@xxxxxxx
>> > To unsubscribe send an email to ceph-users-leave@xxxxxxx
>
>
>
> --
> Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im groüen Saal.
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